When your gun shoots tight groups and then starts to wander. If there is a suppressor involved, best to pull it and check for baffle strikes.
Doesn’t matter how it was working. Doesn’t matter the suppressor passed an alignment rod check earlier.
Collect your data. From scope mounting up top, action screws below, internal ballistics inside, to the devices hung outside. The change was very small. But noticeable. Doc went looking and found the answer.
More on this to come. —Editor
“Shooting Guns & Having Fun”